Business
The developing urban core in the City of Irvine.Orange County is the headquarters of many Fortune 500 companies including Ingram Micro (#69) and First American Corporation (#312) in Santa Ana, Western Digital (#439) in Lake Forest and Pacific Life (#452) in Newport Beach. Irvine is the home of numerous start-up companies and also is the home of Fortune 1000 headquarters for Allergan, Broadcom, Edwards Lifesciences, Epicor, Standard Pacific and Sun Healthcare Group. Other Fortune 1000 companies in Orange County include Beckman Coulter in Fullerton, Quiksilver in Huntington Beach and Apria Healthcare Group in Lake Forest. Irvine is also the home of notable technology companies like PC-manufacturer Gateway Inc., router manufactuer Linksys, and video/computer game creator Blizzard Entertainment. Many regional headquarters for international businesses reside in Orange County like Mazda, Toshiba, Toyota, Samsung, Kia Motors, in the City of Irvine, Mitsubishi in the City of Cypress, and Hyundai in the City of Fountain Valley. Fashion is another important industry to Orange County. Oakley, Inc., the renowned sunglasses company, is headquartered in the City of Lake Forest. Hurley Inc. is headquartered in Costa Mesa. The shoe company Pleaser USA, Inc. is located in Fullerton. St. John is headquartered in Irvine. Wet Seal is headquarted in Lake Forest. Restaurants such as Del Taco, Wahoo's Fish Tacos, Taco Bell, El Pollo Loco, In-N-Out Burger, Claim Jumper, Marie Callender's, Wienerschnitzel, have headquarters in the City of Irvine as well.
Shopping
Orange County contains several notable shopping malls. Among these are the world-renowned South Coast Plaza in Costa Mesa and Fashion Island in Newport Beach. Other significant malls include the Brea Mall, The Shops at Mission Viejo, The Block at Orange, and the Irvine Spectrum Center. There is also Downtown Disney adjacent to Disneyland.
Tourism
Tourism remains a vital aspect of Orange County's economy. Anaheim is the main tourist hub, with the Disneyland Resort's Magic Kingdom Park being the second most visited theme park in the country. The Anaheim Convention Center receives many major conventions throughout the year. Resorts within the Beach Cities receive visitors throughout the year due to their close proximity to the beach, biking paths, mountain hiking trails, golf courses, shopping and dining.
Tallest buildings in Orange County
| City | Structure | Height (feet) | Stories | Built |
| Santa Ana |
One Broadway Plaza |
497 |
37 |
Proposed |
| Costa Mesa |
Center Tower |
285 |
21 |
1985 |
| Costa Mesa |
Plaza Tower |
282 |
21 |
1992 |
| Santa Ana |
Macarthur Skyline Tower 1 |
278 |
25 |
2009 |
| Santa Ana |
Macarthur Skyline Tower 2 |
278 |
25 |
2009 |
| Orange |
City Tower |
269 |
21 |
1988 |
| Irvine |
Jamboree Center - 5 Park Plaza |
263 |
19 |
1990 |
| Irvine |
Jamboree Center - 4 Park Plaza |
263 |
19 |
1990 |
| Irvine |
Jamboree Center - 3 Park Plaza |
263 |
19 |
1990 |
| Irvine |
Edison International Tower |
263 |
19 |
N/A |
| Irvine |
Opus Center Irvine II |
246 |
14 |
2002 |
| Irvine |
Wells Fargo Center |
230 |
18 |
1990 |
| Orange |
Doubletree Hotel Anaheim |
N/A |
20 |
1986 |
| Newport Beach |
The Island Hotel (Formerly the Four Seasons) |
N/A |
20 |
1986 |
| Orange |
City Plaza |
N/A |
18 |
N/A |
| Newport Beach |
610 Tower |
N/A |
18 |
N/A |
| Costa Mesa |
Park Tower |
240 |
17 |
1979 |
| Irvine |
Waterfield Tower (formerly Tower 17) |
220 |
17 |
1987 |
| Newport Beach |
660 Tower |
N/A |
17 |
N/A |
| Newport Beach |
620 Tower |
N/A |
17 |
1970 |
| Irvine |
Irvine Marriott (Koll Center Irvine) |
N/A |
17 |
N/A |
| Anaheim |
Anaheim Marriot - Palms Tower |
N/A |
19 |
N/A |
| Costa Mesa |
Westin South Coast Plaza |
N/A |
17 |
N/A |
| Orange |
1100 Executive Tower |
210 |
16 |
N/A |
| Santa Ana |
Xerox Centre |
N/A |
16 |
1988 |
| Newport Beach |
Marriott Newport Beach Hotel |
N/A |
16 |
N/A |
| Irvine |
2600 Michelson |
N/A |
16 |
N/A |
| Garden Grove |
Hyatt Regency Orange County |
N/A |
16 |
1987 |
| Anaheim |
Anaheim Marriott - Oasis Tower |
N/A |
16 |
N/A |
| Costa Mesa |
DiTech.com Tower (Two Town Center) |
213 |
15 |
N/A |
| Costa Mesa |
Comerica Bank Tower (Two Town Center) |
213 |
15 |
N/A |
| Buena Park |
Supreme Scream (amusement ride) |
312 |
N/A |
N/A |
| Anaheim |
The Twilight Zone Tower of Terror (amusement ride) |
183 |
--- |
2004 |
| Anaheim |
Anaheim Convention Center |
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Orange County
Orange County Economy